Understanding the human body is a team effort. That's where the Yachtel group comes in.

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years.

Yacold also partners with nature portfolio to advance gut microbiome science through the global grants for gut health, an investigator-led research program.

To learn more about Yachtolt, visit yawcult.co.

.jp. That's Y-A-K-U-L-T.C-O.J-P. When it comes to a guide for your gut, count on Yacolt.

This is Scientific American's 60-second science. I'm Christopher in Talata. Got a minute?

Biometric technology was once the stuff of sci-fi,

how many movies show someone having their hand or eye-scanned

to get entry into a secured facility.

But today, biometric tech can be found in millions of people's pockets,

as the fingerprint scanner on an iPhone.

Of course, fingerprint scanning isn't foolproof.

Hackers have stolen fingerprints from photos and use fake prints to fool Apple's touch ID.

Plus, there's always the brute force method,

like the time a gang in Malaysia cut off a guy's fingertip with a machete to interface with the fingerprint recognition system on the victim's Mercedes.

But there is a lesser-known biometric that might be a bit harder to counterfeit.

Brain waves.

In the biometric textbook table of contents, often the brain biometrics were listed as esoteric biometrics. So I guess people

have thought about it for many years, but it's been considered sort of esoteric.

Sarah Laslow, a psychologist at Binghamton University, part of the State University of New York.

To test the potential of brainwave biometrics, Laslow and her colleagues attached electrodes

to the scalps of 45 volunteers. They then recorded an electroencephalogram, or EEG, a reading of the

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